The script for Metro Exodus has been nailed down, 4A Games has said, with its final narrative being larger than Metro 2033 and Metro: Last Light’s stories combined.

Speak to UK publication Official PlayStation Magazine, 4A Games executive producer Jon Bloch said: “To put this into perspective, Metro Exodus’ script is larger than both Metro 2033’s and Last Light’s combined, including all DLC.”

It sounds like we’ve got a mighty big game on our hands then, even though, despite what we first thought, Metro Exodus isn’t open-world. Instead, a break from the confines of the Russian metro system has allowed 4A Games to make wide open levels that can be approached in a lot of ways. 4A has touted levels as large as four kilometres, alongside sandbox gameplay and a full day/night cycle that emulates open-world even if it’s strictly not. Rather than creeping through the Moscow Metro, players will have their very own steam train with which to journey into Eastern Russia. Out here you’ll find new societies, religions, monsters, mutants, and ways of life, all deeply affected by the nuclear fallout which has devastated Russia.

Despite the destruction, anyone who’s checked out either of the two trailers revealed so far will be all too aware of just how eye-searingly beautiful Metro Exodus is looking. It’s got us weeping for the fortunes of our overpriced GPUs. We dread to think what Metro Exodus’ system requirements will be, although any game that’s also got to work on the original Xbox One has to have a great degree of scalability.

Keeping on that same subject for a moment, Bloch also had a few choice words to say about the PlayStation 4 Pro (being a PS4 magazine and all), claiming the team is “putting special attention into the PlayStation 4 Pro to ensure we are using every bit of power that it provides.” PS4 Pro and Xbox One X enhancements are sure to be on the cards then, although we’re skeptical they’re not going to both struggle running Metro Exodus at anything approaching 4K.

There’s a lot to get excited about for Metro fans. The big question now is, when will it release? The last trailer seemed to heavily hint it could be with us as soon as August 8th, 2018. We could just be looking for patterns where there are none but we’d love it to be true. Failing that, 4A has previously said it's targeting an Autumn launch.